Modularized multi-stage soil disintegration real-time monitoring portable device

Abstract

The invention provides a modular multi-stage soil mass disintegration real-time monitoring portable device, and relates to the field of soil mass disintegration monitoring, and the modular multi-stage soil mass disintegration real-time monitoring portable device comprises an upper frame tray, a lower soil sample fixing tray, a supporting member and a plurality of screening disc assemblies. A tension sensor and a camera are integrated, the change rate and morphological evolution of disintegration tension can be recorded in real time, compared with a traditional manual recording method, the automatic monitoring mode can remarkably shorten the test time, in addition, the capacity of supporting continuous monitoring and parallel development of multiple sets of tests further improves the output efficiency of the tests, and the test efficiency is improved. Meanwhile, the components such as the soil sample fixing disc and the screening disc which are magnetically connected can be replaced in a short time, so that the test preparation efficiency is greatly improved, the test process is accelerated, the requirements of different soil sample sizes and screen combination are better met, and the flexibility of the system is improved.

Description

Technical Field

[0001] The present invention relates to the field of soil disintegration monitoring, and particularly to a portable device for modular multi-stage real-time monitoring of soil disintegration. Background Art

[0002] By deeply understanding the soil disintegration process, the disintegration states of soils at different layers at different time points can be accurately recorded. For slope soils composed of multiple layers of different soil types, parameters such as the time when the surface soil, middle soil, and deep soil start to disintegrate, the disintegration rate, and the degree of disintegration can be monitored through this device. This helps to establish a more accurate soil disintegration model, and these data can be used to study the internal mechanism of soil disintegration, such as the influence of the infiltration law of water in different soil layers on disintegration, providing a large amount of first-hand data for the theoretical research of geology and soil science. Previous research on soil disintegration may rely more on laboratory simulations or periodic field observations. This real-time monitoring device can continuously obtain data in the natural environment, enabling researchers to better understand the true dynamic process of soil disintegration under the action of natural factors (such as rainfall, temperature changes, groundwater fluctuations, etc.);

[0003] Nowadays, traditional soil disintegration test devices usually consist of a fixed support, a soil sample container, a simple sieve, and an artificial recording system. By immersing the soil sample in water and observing its disintegration process, it relies on manual timing, visual inspection of the degree of disintegration, or regular weighing to record the mass change, and finally manually calculates the disintegration rate. Using a single-size soil sample fixing plate, it cannot adapt to different soil samples, and the sieve is mostly fixed, making it difficult to replace or stack multiple layers of screening structures. Data recording relies on manual observation and manual input, lacking real-time monitoring;

[0004] In addition, traditional soil disintegration test devices are only applicable to a single-size soil sample fixing plate and cannot adapt to different soil types. Customized equipment is required, resulting in a sharp increase in costs. At the same time, only using the static particle size (such as <20 mm) as the disintegration threshold, lacking multi-dimensional index analysis such as dynamic tensile change rate and morphological evolution, it cannot meet the research needs of complex soils, significantly reducing the test efficiency, accuracy, and repeatability.

[0005] Therefore, it is necessary to provide a new portable device for modular multi-stage real-time monitoring of soil disintegration to solve the above technical problems. Summary of the Invention

[0006] To solve the above technical problems, the present invention provides a portable device for modular multi-stage real-time monitoring of soil disintegration.

[0007] A portable device for real-time monitoring of modular multi-stage soil disintegration provided by the present invention includes: an upper frame tray, a lower soil sample fixing tray, a support member, and multiple sets of screening tray components. The bottom of the upper frame tray is magnetically aligned and fixedly attached to the top of the lower soil sample fixing tray. The tops of multiple sets of the screening tray components are magnetically adsorbed and connected to the bottom surface of the lower soil sample fixing tray. The upper frame tray, the lower soil sample fixing tray, and multiple sets of the screening tray components are all located inside the support member, and multiple sets of the screening tray components are arranged at equal intervals.

[0008] The support member includes a water tank and a metal fixing frame. The metal fixing frame is arranged in a 'T' shape and fixedly installed at the top of the water tank. A tension sensor and a fixed pulley are fixedly provided at the top of the water tank. The tension sensor is installed at the 'T' intersection of the metal fixing frame. The fixed pulley is connected to the top of the upper frame tray through a fiber rope. The middle of the fiber rope slides on the inner surface of the fixed pulley. In addition, a camera is fixedly provided on the bottom surface of the metal fixing frame.

[0009] Preferably, the upper frame tray includes a hook and an aluminum rod frame. The top of the hook is suspended at one end of the fiber rope. The bottom of the hook is magnetically connected to the top of the aluminum rod frame. The aluminum rod frame is a square frame. Magnetically connecting blocks are fixedly provided at the bottoms of the four corners of the aluminum rod frame, and the bottoms of the magnetically connecting blocks are magnetically adsorbed to the top surface of the screening tray component.

[0010] Preferably, the lower soil sample fixing tray includes a soil sample fixing plate and a cross tray. The bottom of the soil sample fixing plate is connected to the top of the cross tray through a magnet sheet. The top surface of the cross tray is magnetically adsorbed and connected to the bottom of the magnetically connecting block.

[0011] Preferably, the screening tray component includes a sieve tray part, a connecting rod part, and a sieve mesh. The connecting rod part vertically penetrates the center of the sieve tray part and is fixedly connected to the inside of the sieve tray part. Square strong magnets are fixedly provided at the top and bottom of the connecting rod part. The top of the square strong magnet is magnetically adsorbed and connected to the bottom of the cross tray. The sieve mesh is sleeved on the outer surface of the connecting rod part and placed inside the sieve tray part.

[0012] Preferably, the sieve tray part includes a sieve tray frame and a sieve tray fixing rod. The sieve tray fixing rod is located inside the sieve tray frame, and both ends of the sieve tray fixing rod are fixedly connected to the inner side walls of the sieve tray frame respectively. The connecting rod part vertically penetrates the center of the sieve tray fixing rod and is fixedly connected. In addition, the top of the sieve tray fixing rod is in contact with the bottom of the sieve mesh, and the outer surface of the sieve tray fixing rod is in contact with the inner side wall of the sieve tray frame.

[0013] Preferably, it further includes a terminal device which is located outside the water tank, and one side of the camera and the end of the tension sensor away from the cable are both connected to the terminal device through data lines.

[0014] Preferably, the apertures of the multiple sieves decrease in a stepped manner from top to bottom.

[0015] Preferably, the multiple magnet sheets are arranged in a square shape.

[0016] Compared with the related art, a portable device for modular multi-stage soil disintegration real-time monitoring provided by the present invention has the following beneficial effects:

[0017] 1. Improvement in test efficiency and productivity

[0018] Through the application of automated data acquisition technology, integrating a tension sensor and a camera, the change rate and morphological evolution of disintegration tension can be recorded in real time. This automated monitoring method can significantly shorten the test time by about 40% compared with the traditional manual recording method. In addition, the ability to support continuous monitoring and parallel conduct of multiple groups of tests further improves the output efficiency of the test. The components such as the soil sample fixing plate and screening plate using magnetic connection can be replaced within just 10 seconds, greatly improving the test preparation efficiency by 60%, accelerating the experimental process, and adapting to the requirements of different soil sample sizes and sieve combinations, increasing the flexibility of the system.

[0019] 2. Optimization of data accuracy and test quality

[0020] In terms of data collection, the high-precision tension sensor has a resolution of 0.01 N, and combined with the camera image analysis technology, the change of disintegration particles at the millimeter level can be captured, ensuring that the data error rate is less than 3%, far better than the error level of more than 15% of the traditional visual inspection method. This greatly improves the reliability and accuracy of the data, providing a solid foundation for subsequent research.

[0021] 3. Operational convenience and cost reduction

[0022] In order to simplify the operation process, the design concept of tool-free disassembly and assembly is adopted, that is, magnetic connection is used to achieve "stick and use", without bolt fixation or professional tools, reducing the operation complexity by 70%. At the same time, the lightweight aluminum rod frame weighs 60% less than the traditional steel frame structure, which is not only convenient for handling and installation, but also reduces material consumption and transportation costs. The reusable characteristics of the modular components also extend the equipment life to three times the original, reducing the cost of consumable replacement.

[0023] 4. Function expansion and environmental friendliness

[0024] The system also supports multi-level disintegration analysis function. By superimposing a double-layer screening plate, multi-level screening of disintegration products can be carried out (such as greater than 2 mm, 0.5 - 2 mm, less than 0.5 mm). Multi-dimensional data can be obtained from a single test, reducing the need for repeated tests. In addition, the detachable and cleanable design of the screening plate helps prevent pollution problems caused by soil sample residues, demonstrating good environmental friendliness. Brief Description of the Drawings

[0025] Figure 1 It is a schematic diagram of the overall structure of a portable device for modular multi-level real-time monitoring of soil body disintegration provided by the present invention;

[0026] Figure 2 It is a schematic diagram of the partial structure of a portable device for modular multi-level real-time monitoring of soil body disintegration provided by the present invention;

[0027] Figure 3 It is a schematic diagram of the overall structure of a portable device including an upper frame tray, a lower soil sample fixing tray, a screening plate assembly, a metal fixing frame, a tension sensor, and a fixed pulley provided by the present invention;

[0028] Figure 4 It is a schematic diagram of the disassembled structure of the screening plate assembly provided by the present invention;

[0029] Figure 5 It is a schematic diagram of the disassembled structure of the lower soil sample fixing tray provided by the present invention.

[0030] Reference numerals in the figures: 1, support member; 11, water tank; 12, metal fixing frame; 13, tension sensor; 14, fixed pulley; 15, cable; 16, camera; 2, upper frame tray; 21, hook; 22, aluminum rod frame; 23, magnetic connection block; 3, lower soil sample fixing tray; 31, soil sample fixing plate; 32, cross tray; 33, magnet sheet; 4, screening plate assembly; 41, sieve plate component; 411, sieve plate frame; 412, sieve plate fixing rod; 42, connecting rod member; 43, sieve mesh; 44, square strong magnet; 5, terminal device; 6, data cable. Detailed Embodiments

[0031] The present invention will be further described below in conjunction with the drawings and embodiments.

[0032] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 , wherein, Figure 1 It is a schematic diagram of the overall structure of a portable device for modular multi-level real-time monitoring of soil body disintegration provided by the present invention; Figure 2Partial structural schematic diagram of a portable device for modular multi-level soil disintegration real-time monitoring provided by the present invention; Figure 3 Overall structural schematic diagram of a portable device including an upper frame tray, a lower soil sample fixing tray, a screening tray assembly, a metal fixing frame, a tensile sensor, and a fixed pulley provided by the present invention; Figure 4 Split structural schematic diagram of the screening tray assembly provided by the present invention; Figure 5 Split structural schematic diagram of the lower soil sample fixing tray provided by the present invention.

[0033] During the specific implementation process, as Figures 1-5 shown, a portable device for modular multi-level soil disintegration real-time monitoring provided by the present invention includes an upper frame tray 2, a lower soil sample fixing tray 3, a support member 1, and multiple groups of screening tray assemblies 4. The bottom of the upper frame tray 2 is magnetically aligned and fixedly attached to the top of the lower soil sample fixing tray 3. The tops of multiple groups of screening tray assemblies 4 are magnetically adsorbed and connected to the bottom surface of the lower soil sample fixing tray 3. The upper frame tray 2, the lower soil sample fixing tray 3, and multiple groups of screening tray assemblies 4 are all located inside the support member 1, and multiple groups of screening tray assemblies 4 are arranged at equal intervals;

[0034] The support member 1 includes a water tank 11 and a metal fixing frame 12. The metal fixing frame 12 is arranged in a 'T' shape and fixedly installed at the top of the water tank 11. A tensile sensor 13 and a fixed pulley 14 are fixedly provided at the top of the water tank 11. The tensile sensor 13 is installed at the 'T' intersection of the metal fixing frame 12. The fixed pulley 14 is connected to the top of the upper frame tray 2 through a fiber rope 15. The middle of the fiber rope 15 slides on the inner surface of the fixed pulley 14. In addition, a camera 16 is fixedly provided on the bottom surface of the metal fixing frame 12;

[0035] It should be noted that the water tank 11 is a square transparent container for holding test water.

[0036] The upper frame tray 2 includes a hook 21 and an aluminum rod frame 22. The top of the hook 21 is suspended at one end of the fiber rope 15. The bottom of the hook 21 is magnetically connected to the top of the aluminum rod frame 22. The aluminum rod frame 22 is a square frame. Four bottom corners of the aluminum rod frame 22 are fixedly provided with magnetic connection blocks 23, and the bottom ends of the magnetic connection blocks 23 are magnetically adsorbed to the top surface of the screening tray assembly 4;

[0037] It should be noted that the hook 21 is a magnetic metal hook. The top is connected to the fixed pulley 14 in the support member 1 through the fiber rope 15. The bottom is magnetically fixed to the center of the top of the aluminum rod frame 22. The aluminum rod frame 22 is a square frame made of lightweight aluminum alloy material. Square strong magnetic connection blocks are embedded at the four corners for magnetic docking with the lower tray.

[0038] Magnetic adsorption connection block 23: It is a square strong magnetic magnet block located at the four corners of the aluminum rod frame 22, and is adsorbed and fixed to the bottom of the cross tray 32 of the lower soil sample fixing tray 3 through magnetic force. Multiple magnet sheets 33 are square strong magnetic magnet blocks.

[0039] The lower soil sample fixing tray 3 includes a soil sample fixing plate 31 and a cross tray 32. The bottom end of the soil sample fixing plate 31 is connected to the top end of the cross tray 32 through a magnet sheet 33, and the surface of the top end of the cross tray 32 is magnetically adsorbed and connected to the bottom end of the magnetic adsorption connection block 23;

[0040] It should be noted that the soil sample fixing plate 31 is a replaceable circular or square plate made of iron material, and is used to fix the soil sample at the center. The cross tray 32 is a cross-shaped frame made of lightweight aluminum alloy. There is a circular magnet sheet 33 above the center intersection point for adsorbing the soil sample fixing plate 31, and a square magnet block is below the intersection point for docking with the magnetic adsorption connection block 23 of the upper frame.

[0041] The screening plate assembly 4 includes a screening plate component 41, a connecting rod component 42, and a screen 43. The connecting rod component 42 vertically penetrates the center of the screening plate component 41 and is fixedly connected to the inside of the screening plate component 41. Square strong magnets 44 are fixedly provided at both the top end and the bottom end of the connecting rod component 42. The top end of the square strong magnet 44 is magnetically adsorbed and connected to the bottom end of the cross tray 32. The screen 43 is sleeved on the outer surface of the connecting rod component 42 and placed inside the screening plate component 41;

[0042] In a specific embodiment, multiple screens 43 are replaceable screens 43 with different pore diameters, which are embedded in the screen frame 411 and locked by the screen fixing rod 412. The pore diameters of multiple screens 43 are usually set to decrease step by step from top to bottom.

[0043] The screening plate component 41 includes a screen frame 411 and a screen fixing rod 412. The screen fixing rod 412 is located inside the screen frame 411, and both ends of the screen fixing rod 412 are fixedly connected to the inner side walls of the screen frame 411. The connecting rod component 42 vertically penetrates the center of the screen fixing rod 412 and is fixedly connected. In addition, the top end of the screen fixing rod 412 is in contact with the bottom end of the screen 43, and the outer surface of the screen fixing rod 412 is in contact with the inner side wall of the screen frame 411.

[0044] It further includes a terminal device 5. The terminal device 5 is located outside the water tank 11, and one side of the camera 16 and the end of the tension sensor 13 far from the cable 15 are both connected to the terminal device 5 through a data cable 6;

[0045] The terminal device 5 is a computer, which is used to analyze and observe the video and data collected by the camera 16 and the tension sensor 13.

[0046] The working principle provided by the present invention is as follows:

[0047] 1. Disintegration monitoring principle, dynamic feedback of tensile force: After the soil sample is immersed in water, it gradually disintegrates, and the decrease in mass causes the tensile force value of the tensile force sensor 13 to decrease. The disintegration stage is judged in real time through the rate of change of tensile force (ΔF / Δt). Then, the disintegration morphology of the soil sample (such as crack expansion and particle shedding) is captured by the camera 16. After being input into the terminal device 5, it can be comprehensively analyzed and judged in combination with the tensile force data;

[0048] 2. Screening and grading principle, multi-stage separation of disintegrated particles are graded through the sieve mesh 43. Large particles remain on the upper sieve tray, and small particles fall into the lower sieve tray or the water tank 11. Then, through repeated disintegration tests, the disintegration products (such as particles that are not completely disintegrated) are collected and directly hung on the magnetic hook 21 for secondary disintegration analysis;

[0049] 3. Data acquisition, screening and analysis: Start the tensile force sensor 13 and the camera 16, let the soil sample stand still and record the initial tensile force value and image. During the disintegration process, the sensor transmits the tensile force data to the computer in real time, and the camera 16 continuously shoots the disintegration dynamics. After the test is over, remove the screening tray, weigh the residual particles on the sieve mesh 43, and record the different particle size distributions;

[0050] 4. When conducting real-time monitoring of the multi-stage soil body disintegration, first, through the magnetic connection fast assembly device, the soil sample fixing plate 31 is adsorbed on the cross tray 32. The single-layer or multi-layer screening trays are magnetically connected to the lower tray through the connecting rod. Adjust the height of the metal frame to immerse the soil sample in the water tank 11. After starting the tensile force sensor 13 and the camera 16, the change in the tensile force value and the morphological evolution during the disintegration process of the soil sample are monitored in real time. The sensor data and images are synchronously transmitted to the terminal device 5 to generate a dynamic curve; After the test is over, the disintegrated particles are multi-stage separated through the screening tray assembly 4 (such as greater than 2 mm, 0.5 - 2 mm, less than 0.5 mm). Weigh the residues on each sieve mesh 43 to analyze the particle size distribution. The particles that are not completely disintegrated can be directly refixed for secondary tests without sample preparation. By replacing the soil sample fixing plate 31 of different sizes, various types of soil samples can be adapted. The entire process realizes component replacement within 10 seconds through the magnetic modular design. Combining automated data acquisition and dynamic threshold analysis significantly improves the test efficiency and data accuracy, and is applicable to the multi-scenario requirements of the field site and the laboratory.

[0051] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. All equivalent structural or equivalent process transformations made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are similarly included in the patent protection scope of the present invention.

Claims

1. A modular portable device for real-time monitoring of multi-stage soil collapse, characterized in that: include: An upper frame tray (2), a lower soil sample fixing tray (3), a supporting structure (1) and a plurality of screening disc assemblies (4), wherein the bottom of the upper frame tray (2) is aligned and fixed to the top of the lower soil sample fixing tray (3) by magnetic attraction, and the tops of the plurality of screening disc assemblies (4) are magnetically adsorbed and connected to the bottom surface of the lower soil sample fixing tray (3). The upper frame tray (2), the lower soil sample fixing tray (3) and the plurality of screening disc assemblies (4) are all located inside the supporting structure (1), and the plurality of screening disc assemblies (4) are arranged in an equidistant manner. The supporting structure (1) comprises a water tank (11) and a metal fixing frame (12). The metal fixing frame (12) is arranged in a 'T' shape and is fixedly installed on the top of the water tank (11). A tension sensor (13) and a fixed pulley (14) are fixedly installed on the top of the water tank (11). The tension sensor (13) is installed at the 'T' intersection of the metal fixing frame (12). The fixed pulley (14) is connected to the top of the upper frame tray (2) through a fiber rope (15). The middle part of the fiber rope (15) slides and is located on the inner surface of the fixed pulley (14). In addition, a camera (16) is fixedly installed on the bottom surface of the metal fixing frame (12).

2. The portable device for real-time monitoring of modular multi-stage soil collapse according to claim 1 is characterized in that: The upper frame tray (2) comprises a hook (21) and an aluminum rod frame (22), the top end of the hook (21) is suspended on one end of the fiber rope (15), the bottom end of the hook (21) is magnetically connected to the top end of the aluminum rod frame (22), and the aluminum rod frame (22) is a square frame. Magnetic connection blocks (23) are fixedly provided at the bottom ends of the four corners of the aluminum rod frame (22), and the bottom end of the magnetic connection block (23) is magnetically adsorbed to the top surface of the screening disc assembly (4).

3. The portable device for real-time monitoring of modular multi-stage soil collapse according to claim 2 is characterized in that: The lower soil sample fixing tray (3) comprises a soil sample fixing tray (31) and a cross tray (32); the bottom end of the soil sample fixing tray (31) is connected to the top end of the cross tray (32) via a magnet sheet (33); the top surface of the cross tray (32) is magnetically connected to the bottom end of the magnetic connection block (23).

4. The portable device for real-time monitoring of modular multi-stage soil collapse according to claim 3 is characterized in that: The sieve plate assembly (4) comprises a sieve plate component (41), a connecting rod (42) and a sieve (43); the connecting rod (42) vertically penetrates the center of the sieve plate component (41) and is fixedly connected to the inside of the sieve plate component (41); square strong magnets (44) are fixedly provided at the top and bottom of the connecting rod (42); the top of the square strong magnet (44) is magnetically connected to the bottom of the cross tray (32); the sieve (43) is sleeved on the outer surface of the connecting rod (42) and placed inside the sieve plate component (41).

5. The portable device for real-time monitoring of modular multi-stage soil collapse according to claim 4 is characterized in that: The sieve plate component (41) comprises a sieve plate frame (411) and a sieve plate fixing rod (412); the sieve plate fixing rod (412) is located inside the sieve plate frame (411), and two ends of the sieve plate fixing rod (412) are respectively fixedly connected to the inner wall of the sieve plate frame (411); the connecting rod (42) vertically passes through the center of the sieve plate fixing rod (412) and is fixedly connected; in addition, the top end of the sieve plate fixing rod (412) is in contact with the bottom end of the sieve (43), and the outer surface of the sieve plate fixing rod (412) is in contact with the inner wall of the sieve plate frame (411).

6. The portable device for real-time monitoring of modular multi-stage soil collapse according to claim 5, characterized in that: The apertures of the plurality of screens (43) decrease in a step-like manner from top to bottom.

7. The portable device for real-time monitoring of modular multi-stage soil collapse according to claim 6, characterized in that: The plurality of magnet pieces (33) are arranged in a square shape.

8. The portable device for real-time monitoring of modular multi-stage soil collapse according to claim 7, characterized in that: It also includes a terminal device (5), which is located outside the water tank (11), and one side of the camera (16) and one end of the tension sensor (13) away from the fiber rope (15) are connected to the terminal device (5) via a data cable (6).

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